RedHat 9 扩容逻辑卷

RedHat 9 扩容逻辑卷

查看逻辑卷剩余空间（VFree）：

[root@zhpj ~]# vgs
  VG   #PV #LV #SN Attr   VSize   VFree 
  data   2   2   0 wz--n-  19.99g 13.99g
  rhel   1   2   0 wz--n- <19.00g     0 
[root@zhpj ~]#

‍

xfs 文件系统扩容

从 5GB 扩容到 10GB：

[root@zhpj ~]# lvextend -L 10G /dev/data/lv01 
  Size of logical volume data/lv01 changed from 5.00 GiB (1280 extents) to 10.00 GiB (2560 extents).
  Logical volume data/lv01 successfully resized.
[root@zhpj ~]#

# 此时逻辑卷还是 5GB
[root@zhpj ~]# df -hT
Filesystem            Type      Size  Used Avail Use% Mounted on
devtmpfs              devtmpfs  4.0M     0  4.0M   0% /dev
tmpfs                 tmpfs     1.9G     0  1.9G   0% /dev/shm
tmpfs                 tmpfs     779M  9.5M  769M   2% /run
/dev/mapper/rhel-root xfs        17G  6.2G   11G  37% /
/dev/sr0              iso9660   9.0G  9.0G     0 100% /media/rhel9
/dev/sdb1             xfs      1014M  260M  755M  26% /boot
tmpfs                 tmpfs     390M   52K  390M   1% /run/user/42
tmpfs                 tmpfs     390M   36K  390M   1% /run/user/0
/dev/mapper/data-lv01 xfs       5.0G   68M  5.0G   2% /lv01
[root@zhpj ~]# 
[root@zhpj ~]# xfs_growfs /lv01/
meta-data=/dev/mapper/data-lv01  isize=512    agcount=4, agsize=327680 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=1 inobtcount=1
data     =                       bsize=4096   blocks=1310720, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 1310720 to 2621440
[root@zhpj ~]# 
[root@zhpj ~]# df -hT
Filesystem            Type      Size  Used Avail Use% Mounted on
devtmpfs              devtmpfs  4.0M     0  4.0M   0% /dev
tmpfs                 tmpfs     1.9G     0  1.9G   0% /dev/shm
tmpfs                 tmpfs     779M  9.5M  769M   2% /run
/dev/mapper/rhel-root xfs        17G  6.2G   11G  37% /
/dev/sr0              iso9660   9.0G  9.0G     0 100% /media/rhel9
/dev/sdb1             xfs      1014M  260M  755M  26% /boot
tmpfs                 tmpfs     390M   52K  390M   1% /run/user/42
tmpfs                 tmpfs     390M   36K  390M   1% /run/user/0
/dev/mapper/data-lv01 xfs        10G  104M  9.9G   2% /lv01
[root@zhpj ~]# 

‍

扩容后自动扩展文件系统，（自动执行了 xfs_growfs 命令）：

[root@zhpj ~]# lvextend -rL +1G /dev/data/lv01
  Size of logical volume data/lv01 changed from 10.00 GiB (2560 extents) to 11.00 GiB (2816 extents).
  File system xfs found on data/lv01 mounted at /lv01.
  Extending file system xfs to 11.00 GiB (11811160064 bytes) on data/lv01...
xfs_growfs /dev/data/lv01
meta-data=/dev/mapper/data-lv01  isize=512    agcount=8, agsize=327680 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=1 inobtcount=1
data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 2621440 to 2883584
xfs_growfs done
  Extended file system xfs on data/lv01.
  Logical volume data/lv01 successfully resized.
[root@zhpj ~]# 
[root@zhpj ~]# df -hT
Filesystem            Type      Size  Used Avail Use% Mounted on
devtmpfs              devtmpfs  4.0M     0  4.0M   0% /dev
tmpfs                 tmpfs     1.9G     0  1.9G   0% /dev/shm
tmpfs                 tmpfs     779M  9.5M  769M   2% /run
/dev/mapper/rhel-root xfs        17G  6.2G   11G  37% /
/dev/sr0              iso9660   9.0G  9.0G     0 100% /media/rhel9
/dev/sdb1             xfs      1014M  260M  755M  26% /boot
tmpfs                 tmpfs     390M   52K  390M   1% /run/user/42
tmpfs                 tmpfs     390M   36K  390M   1% /run/user/0
/dev/mapper/data-lv01 xfs        11G  112M   11G   1% /lv01
[root@zhpj ~]# 

xfs_growfs 是 xfs 文件系统调整文件系统大小的命令，ext4 文件系统调整文件系统大小的命令是 resize2fs

‍

ext4 文件系统扩容

[root@zhpj ~]# mkfs.ext4 /dev/data/lv02 
mke2fs 1.46.5 (30-Dec-2021)
Creating filesystem with 262144 4k blocks and 65536 inodes
Filesystem UUID: 3e1ff10f-6286-45d5-ace9-2483d2c1b77b
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376

Allocating group tables: done                          
Writing inode tables: done                          
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done

[root@zhpj ~]# 
[root@zhpj ~]# lvextend -rL +5G /dev/data/lv02
  Size of logical volume data/lv02 changed from 1.00 GiB (256 extents) to 6.00 GiB (1536 extents).
  File system ext4 found on data/lv02.
  File system fsck will be run before extend.
  Extending file system ext4 to 6.00 GiB (6442450944 bytes) on data/lv02...
e2fsck /dev/data/lv02
/dev/data/lv02: 11/65536 files (0.0% non-contiguous), 12955/262144 blocks
e2fsck done
resize2fs /dev/data/lv02
resize2fs 1.46.5 (30-Dec-2021)
Resizing the filesystem on /dev/data/lv02 to 1572864 (4k) blocks.
The filesystem on /dev/data/lv02 is now 1572864 (4k) blocks long.

resize2fs done
  Extended file system ext4 on data/lv02.
  Logical volume data/lv02 successfully resized.
[root@zhpj ~]# 
[root@zhpj ~]# lvs
  LV   VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  lv01 data -wi-ao----  11.00g                                                  
  lv02 data -wi-a-----   6.00g                                                  
  root rhel -wi-ao---- <17.00g                                                  
  swap rhel -wi-ao----   2.00g                                                  
[root@zhpj ~]#